Crystal Growth of Ca(3)Nb(Ga(1−x)Al(x))(3)Si(2)O(14) Piezoelectric Single Crystals with Various Al Concentrations

Ca(3)Nb(Ga(1−x)Al(x))(3)Si(2)O(14) (CNGAS) single crystals with various Al concentrations were grown by a micro-pulling-down (µ-PD) method and their crystal structures, chemical compositions, crystallinities were investigated. CNGAS crystals with x = 0.2, 0.4 and 0.6 indicated a single phase of lang...

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Autores principales: Yokota, Yuui, Kudo, Tetsuo, Ohashi, Yuji, Medvedev, Andrey, Kurosawa, Shunsuke, Kamada, Kei, Yoshikawa, Akira
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5512616/
https://www.ncbi.nlm.nih.gov/pubmed/28793525
http://dx.doi.org/10.3390/ma8095264
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author Yokota, Yuui
Kudo, Tetsuo
Ohashi, Yuji
Medvedev, Andrey
Kurosawa, Shunsuke
Kamada, Kei
Yoshikawa, Akira
author_facet Yokota, Yuui
Kudo, Tetsuo
Ohashi, Yuji
Medvedev, Andrey
Kurosawa, Shunsuke
Kamada, Kei
Yoshikawa, Akira
author_sort Yokota, Yuui
collection PubMed
description Ca(3)Nb(Ga(1−x)Al(x))(3)Si(2)O(14) (CNGAS) single crystals with various Al concentrations were grown by a micro-pulling-down (µ-PD) method and their crystal structures, chemical compositions, crystallinities were investigated. CNGAS crystals with x = 0.2, 0.4 and 0.6 indicated a single phase of langasite-type structure without any secondary phases. In contrast, the crystals with x = 0.8 and 1 included some secondary phases in addition to the langasite-type phase. Lattice parameters, a- and c-axes lengths, of the langasite-type phase systematically decreased with an increase of Al concentration. The results of chemical composition analysis revealed that the actual Al concentrations in as-grown crystals were almost consistent with the nominal compositions. In addition, there was no large segregation of each cation along the growth direction.
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spelling pubmed-55126162017-07-28 Crystal Growth of Ca(3)Nb(Ga(1−x)Al(x))(3)Si(2)O(14) Piezoelectric Single Crystals with Various Al Concentrations Yokota, Yuui Kudo, Tetsuo Ohashi, Yuji Medvedev, Andrey Kurosawa, Shunsuke Kamada, Kei Yoshikawa, Akira Materials (Basel) Article Ca(3)Nb(Ga(1−x)Al(x))(3)Si(2)O(14) (CNGAS) single crystals with various Al concentrations were grown by a micro-pulling-down (µ-PD) method and their crystal structures, chemical compositions, crystallinities were investigated. CNGAS crystals with x = 0.2, 0.4 and 0.6 indicated a single phase of langasite-type structure without any secondary phases. In contrast, the crystals with x = 0.8 and 1 included some secondary phases in addition to the langasite-type phase. Lattice parameters, a- and c-axes lengths, of the langasite-type phase systematically decreased with an increase of Al concentration. The results of chemical composition analysis revealed that the actual Al concentrations in as-grown crystals were almost consistent with the nominal compositions. In addition, there was no large segregation of each cation along the growth direction. MDPI 2015-08-26 /pmc/articles/PMC5512616/ /pubmed/28793525 http://dx.doi.org/10.3390/ma8095264 Text en © 2015 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yokota, Yuui
Kudo, Tetsuo
Ohashi, Yuji
Medvedev, Andrey
Kurosawa, Shunsuke
Kamada, Kei
Yoshikawa, Akira
Crystal Growth of Ca(3)Nb(Ga(1−x)Al(x))(3)Si(2)O(14) Piezoelectric Single Crystals with Various Al Concentrations
title Crystal Growth of Ca(3)Nb(Ga(1−x)Al(x))(3)Si(2)O(14) Piezoelectric Single Crystals with Various Al Concentrations
title_full Crystal Growth of Ca(3)Nb(Ga(1−x)Al(x))(3)Si(2)O(14) Piezoelectric Single Crystals with Various Al Concentrations
title_fullStr Crystal Growth of Ca(3)Nb(Ga(1−x)Al(x))(3)Si(2)O(14) Piezoelectric Single Crystals with Various Al Concentrations
title_full_unstemmed Crystal Growth of Ca(3)Nb(Ga(1−x)Al(x))(3)Si(2)O(14) Piezoelectric Single Crystals with Various Al Concentrations
title_short Crystal Growth of Ca(3)Nb(Ga(1−x)Al(x))(3)Si(2)O(14) Piezoelectric Single Crystals with Various Al Concentrations
title_sort crystal growth of ca(3)nb(ga(1−x)al(x))(3)si(2)o(14) piezoelectric single crystals with various al concentrations
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5512616/
https://www.ncbi.nlm.nih.gov/pubmed/28793525
http://dx.doi.org/10.3390/ma8095264
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